What Gamer said, ditch the superdump and NO; they are not going to give you much more than a stim boost. NTKTS is a simple, effective formula that will take you workouts where neither of those two could!
If you're looking to make a change, I'll assume its because you're becoming less impressed by your current product - so I would advise you to switch, but switch to something more fundamentally different than your current product.
superpump and no explode are a waste of money. i guess if you have some handy and are feeling sluggish you can have a serving before you workout but as far as cycling them and expecting gains it is bullshit.